Embedded Software Engineer

Responsibilities

• Design, develop and maintain embedded software using C/C++ within real‑time environments
• Develop software for avionics and land defence systems , interfacing closely with hardware
• Work across the full lifecycle from requirements and architecture through to integration, testing and deployment
• Support hardware/software integration , debugging and system bring‑up activities
• Develop and optimise code for performance‑critical and resource‑constrained environments
• Contribute to verification and validation activities , including unit and integration testing
• Collaborate with systems, electronics and hardware engineers to ensure seamless system performance
• Participate in code reviews, technical discussions and continuous improvement activities
• Required Skills
• 5+ years' experience in embedded software development
• Strong programming experience in C/C++ within real‑time or embedded systems
• Experience working close to hardware interfaces (drivers, peripherals, communication protocols)
• Understanding of embedded systems architecture and constraints
• Experience across the software development lifecycle in safety‑critical or regulated environments
• Strong debugging and problem‑solving skills in low‑level systems
• Soft Skills & Collaboration
• Strong communicator within multidisciplinary engineering teams
• Proactive and solution‑focused mindset
• Ability to work in structured, process‑driven environments (defence / safety‑critical)
• Collaborative approach with a focus on quality and delivery
• Required Qualifications
• Bachelor's or Master's degree in Engineering, or relevant technical military background with equivalent experience.
• Desirable Skills
• Experience within avionics or defence systems
• Knowledge of real‑time operating systems (RTOS) (e.g. VxWorks, FreeRTOS, Embedded Linux)
• Experience with communication protocols (e.g. CAN, SPI, I2C, UART, Ethernet)
• Exposure to safety‑critical standards (e.g. DO‑178C, MISRA)
• Experience with hardware debugging tools (e.g. oscilloscopes, JTAG, logic analysers)
• Familiarity with CI/CD pipelines or automated testing frameworks
• Why join us?
• We bring together entrepreneurial, tech-driven people to deliver innovative solutions for leading companies.
• At ALTEN, you'll work on exciting projects, supported by ongoing learning, mentoring, and clear career development tailored to your goals.
• Join a passionate team and help build tomorrow, today.
• In short you get:
• A personalised career path and a rewarding management style
• A huge diversity of engineering projects and industries
• Private Medical Insurance
• Cycle & Tech Scheme
• Employee assistance programme
• Life insurance & Pension Scheme
• Social atmosphere, regular gatherings & team buildings
• Flexible way of working (role dependent)

Benefits

Additional Information

Work on cutting‑edge embedded software systems supporting advanced avionics and land‑based defence platforms . Join ALTEN Ltd as an Embedded Software Engineer , where you'll develop robust, real‑time software that underpins mission‑critical systems operating in highly challenging environments. You'll be hands‑on across the full embedded software lifecycle , working on low‑level development, hardware integration, and performance‑critical applications - contributing to systems that demand precision, reliability and safety. Location: Hastings On‑site: Hybrid (3 days per week) Seniority: Mid-Senior (5+ years experience) Security Clearance: Candidates must be willing and eligible to obtain SC clearance.

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